CXSD62120集成了一个同步buck-PWM控制器来产生VDDQ，一个源极和陷极LDO线性调节器来产生VTT。它为DDR2、DDR3、DDR3L和DDR4存储系统提供完整的电源。它提供了系统中最低的总体解决方案成本，而空间是一个溢价。
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产品概述 返回TOP
产品特点 返回TOP
Buck Controller (VDDQ)
· High Input Voltages Range from 3V to 28V Input Power
· Provide 1.8V (DDR2), 1.5V (DDR3), 1.35V (DDR3L), 1.2V(DDR4) or Adjustable Output Voltage from 0. 5V to 2V.
- ±1% Accuracy Over-Temperature
· Build in VREF Voltage 1.8V ±1% Accuracy over Temperature
· Integrated MOSFET Drivers
· Integrated Bootstrap Forward P-CH MOSFET
· Excellent Line and Load Transient Responses
· PFM Mode for Increased Light Load Efficiency
· Selectable 500kHz / 670kHz Switching Frequencies
· Integrated MOSFET Drivers and Bootstrap Diode
· S3 and S5 Pins Control The Device in S0, S3, or S4/S5 State
· Power Good Monitoring
· 50% Under-Voltage Protection (UVP)
· 125% Over-Voltage Protection (OVP)
· Adjustable Current-Limit Protection
- Using Sense Low-Side MOSFET RDS(ON)
· QFN-20 3mmx3mm Package (QFN-20) and QFN-16 3mmx3mm Thin Package (TQFN-16)
· Lead Free Available (RoHS Compliant) +1.5A LDO Section (VTT)
· Souring or Sinking Current up to 1.5A
· Fast Transient Response for Output Voltage
· Output Ceramic Capacitors Support at Least 10mF MLCC
· VTT and VTTREF Track at Half the VDDQSNS by Internal Divider
· ±20mV Accuracy for VTT and VTTREF
· Independent Over-Current-Limit (OCL)
· Thermal Shutdown Protection
应用范围 返回TOP
· DDR2,DDR3,DDR3LandDDR4MemoryPowerSup- plies
· SSTL-2 SSTL-18 and HSTL Termination
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产品封装图 返回TOP
电路原理图 返回TOP
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Switching Regulator > Buck Controller |
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|
Part_No |
Package |
Topology |
Archi tectu |
Phase |
No.of PWM Output |
Output Current (A) |
Input Voltage (V) |
Reference Voltage (V) |
Bias Voltage (V) |
Quiescent Current (uA) |
|
|
min |
max |
||||||||||
|
SOP-14|QSOP-16 QFN4x4-16 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
0.9 |
12 |
8000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.9 |
13.2 |
0.8 |
12 |
5000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.9 |
13.2 |
0.8 |
12 |
5000 |
|
|
QFN4x4-24 |
Multiphase |
VM |
2 |
1 |
60 |
3.1 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.2 |
13.2 |
0.8 |
5~12 |
2100 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
20 |
2.2 |
13.2 |
0.8 |
5~12 |
2100 |
|
|
SOP8|TSSOP8 |
Buck |
VM |
1 |
1 |
5 |
5 |
13.2 |
1.25|0.8 |
5~12 |
3000 |
|
|
SOP-8 |
Buck |
VM |
1 |
1 |
10 |
3.3 |
5.5 |
0.8 |
5 |
2100 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
10 |
5 |
13.2 |
0.8 |
12 |
2000 |
|
|
TSSOP-24 |QFN5x5-32 |
Buck |
VM |
1 |
2 |
20 |
5 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP14|QSOP16 |QFN-16 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
0.9 |
12 |
4000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
30 |
2.2 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
30 |
2.2 |
13.2 |
0.6 |
12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
25 |
2.2 |
13.2 |
0.8 |
12 |
5000 |
|
|
LQFP7x7 48 |TQFN7x7-48 |
Buck|Boost |Flyback |
VM |
1 |
6 |
0.015 |
1.4 |
6.5 |
- |
5 |
1800 |
|
|
TSSOP-24P |
Buck |
VM |
1 |
2 |
20 |
2.97 |
5.5 |
0.8 |
5~12 |
5000 |
|
|
SOP-14 |
Buck |
VM |
1 |
1 |
10 |
5 |
13.2 |
0.8 |
12 |
3000 |
|
|
SOP-8-P|DIP-8 |
Buck |
VM |
1 |
1 |
30 |
2.9 |
13.2 |
1.2 |
12 |
3000 |
|
|
SSOP28 QFN4x4-24 |
Buck |
VM |
1 |
2 |
20 |
5 |
24 |
0.9 |
5 |
1200 |
|
|
SOP-20 |
Buck |
VM |
1 |
2 |
20 |
2.2 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP8|DFN3x3-10 |
VM |
1 |
2 |
- |
- |
- |
- |
5~12 |
550 |
||
|
DIP8|SOP-8 |
Buck|Boost |Flyback |Forward |
VM |
1 |
1 |
1 |
1.2 |
9 |
24 |
5 |
9 ~ 24 |
|
|
SSOP16|QFN4x4-16 |TQFN3x3-16 |
Buck |
VM |
1 |
1 |
25 |
3 |
25 |
0.6 |
5 |
1700 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
25 |
3 |
25 |
0.5 |
5 |
350 |
|
|
QFN4x4-24 |
Buck |
CM |
2 |
1 |
40 |
4.5 |
13.2 |
0.6 |
5~12 |
4000 |
|
|
SOP8P|TDFN3x3-10 |
Buck |
VM |
1 |
1 |
20 |
3 |
13.2 |
0.8 |
5~12 |
2500 |
|
|
SOP8P |
Buck |
VM |
1 |
1 |
25 |
3 |
13.2 |
0.6|0.8 |
5~12 |
1200 |
|
|
TDFN3x3-10 |
Buck |
VM |
1 |
1 |
25 |
4 |
13.2 |
0.8 |
5~12 |
2000 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
25 |
4.5 |
25 |
0.6 |
5~12 |
80 |
|
|
SOP-8P |
Buck |
VM |
1 |
1 |
25 |
4.5 |
13.2 |
0.8 |
5~12 |
16000 |
|
|
TQFN3x3-10 |
Buck |
VM |
1 |
1 |
25 |
4.5 |
13.2 |
0.6 |
5~12 |
2500 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
30 |
3 |
25 |
0.8 |
5~12 |
2000 |
|
|
TQFN3x3-16 |
Buck |
COT |
1 |
1 |
30 |
1.8 |
28 |
0.6 |
5 |
600 |
|
|
TQFN 3x3 16 |
Buck |
COT |
1 |
1 |
30 |
1.8 |
28 |
0.6 |
5 |
600 |
|
|
QFN4x4-24 |
Buck |
VM |
2 |
1 |
50 |
4.5 |
13.2 |
0.6 |
5~12 |
5000 |
|
|
TQFN4x4-24 |
Buck |
COT |
1 |
2 |
15 |
6 |
25 |
2 |
N |
550 |
|
|
TQFN4x4-24 |
Buck |
COT |
1 |
2 |
15 |
6 |
25 |
2 |
N |
550 |
|
|
TQFN4x4-4 TQFN3x3-20 |
Buck |
COT |
1 |
2 |
20 |
3 |
28 |
0.75 |
5 |
800 |
|
|
TQFN3x3-16 |
Buck |
COT |
1 |
1 |
20 |
1.8 |
28 |
0.75 |
5 |
400 |
|
|
QFN3.5x3.5-14 |TQFN3x3-16 |
Buck |
COT |
1 |
1 |
20 |
1.8 |
28 |
0.75 |
5 |
400 |
|
|
TQFN3x3-16 |
Buck |
COT |
1 |
2 |
20 |
1.8 |
28 |
0.75 |
5 |
400 |
|
|
QFN3x3-20 TQFN3x3-16 |
Buck |
COT |
1 |
2 |
20 |
3 |
28 |
1.8|1.5|0.5 |
5 |
740 |
|
|
TQFN4x4-24 |QFN3x3-20 |
Buck |
CM |
1 |
2 |
15 |
5 |
28 |
0.5 |
N |
3000 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
20 |
1.8 |
28 |
0.5 |
5 |
250 |
|
|
TQFN3x3-20 |
Buck |
COT |
1 |
2 |
15 |
6 |
25 |
2 |
N |
550 |
|
|
TQFN 3x3 20 |
Buck |
COT |
2 |
2 |
11 |
6 |
25 |
2 |
N |
550 |
|
|
TQFN3x3-20 |
Buck |
COT |
2 |
2 |
11 |
5.5 |
25 |
2 |
N |
280 |
|
|
QFN4x4-24 |
Multiphase |
VM |
2 |
1 |
60 |
3.1 |
13.2 |
0.85 |
12 |
5000 |
|
|
SOP-8P |
Buck |
VM |
1 |
1 |
20 |
2.9 |
13.2 |
0.8 |
12 |
16000 |
|
|
SOP-20 |
Buck |
VM |
2 |
2 |
30 |
10 |
13.2 |
1 |
12 |
5000 |
|
|
TDFN3x3-10 |
Buck |
COT |
1 |
1 |
25 |
1.8 |
28 |
0.7 |
5 |
250 |
|
|
TQFN3x3-20 |
Buck |
COT |
2 |
1 |
40 |
1.8 |
25 |
REFIN Setting |
5 |
700 |
|
|
QFN 3x3 20 TQFN 3x3 16 |
Buck |
COT |
1 |
2 |
20 |
3 |
28 |
1.8|1.5 1.35|1.2 0.5 |
5 |
800 |
|
|
TQFN3x3 20 |
Buck |
COT |
1 |
2 |
15 |
3 |
28 |
0.75 |
5 |
220 |
|
|
TQFN3x3 20 |
Buck |
COT |
1 |
2 |
15 |
3 |
28 |
0.75 |
5 |
220 |
|
|
TQFN3x3-20 |
Buck |
COT |
1 |
2 |
20 |
3 |
28 |
0.75 |
5 |
180 |
|
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